realm-mobile-platform

问题 Conversation class previously had a string field named "message". Now this "message" field is removed and i have added a "RealmList allMessages" inside Conversation class instead of old "message" field. ChatMessage class has a field name "messageText". How can i migrate "message" from Conversation class to "messageText" of list "allMessages"?? public class ChatMessage extends RealmObject implements Parcelable { .... private String messageText; .... } Old Conversation class. public class

问题 Conversation class previously had a string field named "message". Now this "message" field is removed and i have added a "RealmList allMessages" inside Conversation class instead of old "message" field. ChatMessage class has a field name "messageText". How can i migrate "message" from Conversation class to "messageText" of list "allMessages"?? public class ChatMessage extends RealmObject implements Parcelable { .... private String messageText; .... } Old Conversation class. public class

来源： https://stackoverflow.com/questions/48899543/realm-migration-from-a-required-variable-to-nullable

来源： https://stackoverflow.com/questions/48899543/realm-migration-from-a-required-variable-to-nullable

问题 How we can store java list in realm android database. I try to store it by using setter method present in my model, but it doesn't work and I get "Each element of 'value' must be a valid managed object" in exception message. public void storeNewsList(String categoryId, List<News> newsList) { Realm realm = Realm.getDefaultInstance(); realm.beginTransaction(); NewsList newsListObj = realm.createObject(NewsList.class); newsListObj.setNewsList(new RealmList<>(newsList.toArray(new News[newsList

问题 I am removing an old unused table from the schema. How can I delete it (DROP Table) from older versions of the app? What I have tried so far Removed GameScore.self from configration.objectTypes Bumped schema version Run the app Opened Realm Studio and the table GameScore is still there with the data that was already there previously Adding config.migrationBlock = { migration, oldSchemaVersion in if oldSchemaVersion < 10 { migration.enumerateObjects(ofType: "GameScore", { (oldObject, newObject

问题 I am removing an old unused table from the schema. How can I delete it (DROP Table) from older versions of the app? What I have tried so far Removed GameScore.self from configration.objectTypes Bumped schema version Run the app Opened Realm Studio and the table GameScore is still there with the data that was already there previously Adding config.migrationBlock = { migration, oldSchemaVersion in if oldSchemaVersion < 10 { migration.enumerateObjects(ofType: "GameScore", { (oldObject, newObject

问题 I am removing an old unused table from the schema. How can I delete it (DROP Table) from older versions of the app? What I have tried so far Removed GameScore.self from configration.objectTypes Bumped schema version Run the app Opened Realm Studio and the table GameScore is still there with the data that was already there previously Adding config.migrationBlock = { migration, oldSchemaVersion in if oldSchemaVersion < 10 { migration.enumerateObjects(ofType: "GameScore", { (oldObject, newObject

问题 Ubuntu 16.04 / ROS v1.3.0 I am attempting to configure my ROS to use secure SSL connections. If I do not make any changes to the configuration.yml - ROS is fine. I can sync and use the dashboard as I would expect. I have obtained an SSL cert from Letsencrypt. I used the CertBot in standalone mode so that I did not have to install or configure Nginx. (My preference is to not install yet another tech/layer - keep it clean!) I have the following certificates/key stored in this folder: /etc

问题 I had a Route object and I saw that I can't serialize it. So I said I'll debug and try to serialize the objects from it, separately. This is my function: public JSONObject getRouteJson(Next_Step step) { JSONObject route = new JSONObject(); try { ObjectMapper mapper = new ObjectMapper(); mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false); RouteNonRealm r = new RouteNonRealm(step.getRoute()); String string = mapper.writeValueAsString(r.getDuration()); route.put("duration", string